Peter Barrett
Partner at Atlas Venture
Waltham, Massachusetts
Peter Barrett, Partner at Atlas Venture is an active investor based in Waltham, Massachusetts. This profile covers what Peter Barrett backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPEInvestment PartnerInvestor
- Stages
- SeedSeries ASeries B
- Invests in
- Artificial IntelligenceHealthcare & BiotechDigital Health & HealthTechBiotech & PharmaMedTech & Medical DevicesSaaS & EnterpriseConsumer & RetailCybersecurity
- Location
- Waltham, Massachusetts
- Typical check
- $1M
- Past investments
- 10
Notable investments
Posterous
Archemix
Momenta Pharmaceuticals
SynlogicCadent Therapeutics
Obsidian Therapeutics
ZafgenInfaCare Pharmaceutical
Harbour Antibodies
Raze TherapeuticsHow to reach Peter Barrett
Angels and operators like Peter Barrett reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded Accelerator.
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Frequently Asked Questions
What does Peter Barrett invest in?
Peter Barrett invests in Artificial Intelligence, Healthcare & Biotech, Digital Health & HealthTech and Biotech & Pharma, typically at Seed, Series A and Series B. Match your sector and stage, then reach out with a personalized pitch.
What stage does Peter Barrett invest at?
Peter Barrett typically invests at Seed, Series A and Series B. Lead with traction that fits the stage when you reach out.
What is Peter Barrett's typical check size?
Peter Barrett typically writes checks around $1M. Use it as a signal for whether your raise fits their stage.
How do I contact Peter Barrett?
Unlock Peter Barrett's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.